Finding the Third Proportional to 20,146.50 and 38,311

Step by Step Solution

1. Step 1: Write the proportion equation
   20,146.50 : 38,311 = 38,311 : x
2. Step 2: Convert to fraction form
   20,146.50/38,311 = 38,311/x
3. Step 3: Cross multiply
   20,146.50x = 38,311 × 38,311
4. Step 4: Simplify right side
   20,146.50x = 1,467,732,721
5. Step 5: Solve for x
   x = 1,467,732,721/20,146.50
6. Step 6: Final answer
   x = 72,852.99